Repair and Diagnosis: Transmission: Clutch: Clutches: Description

The 928 model uses a dry, dual disc, diaphragm spring type of clutch system. All other models use a dry, single disc, diaphragm spring type of clutch system. Clutch is hydraulically operated on 928 models and mechanically operated on all other models. Pedal is connected to release lever by cable on all models except 928, which is connected by a hydraulic line. All models have similar clutch disc design. Turbo models have thicker clutch lining, stronger springs and larger diameter hubs. Turbo models also have release lever mounted so shorter and thicker cable can be used.